Electric program-clock.



No. 659,479. Patuhfed Get. 9, I900. H. F. JORDAN.

ELECTRIC PROGRAM cLocx.

(Application aim m. 15, 189B.)

2 Sheds-Shoat I.

(No Model.)

THE NORRIS wnzls $0.. mo'ro'umo wAsmucm. o. c.

No. 659,479. Patented Oct. 9-, I900;

H. r. JORDAN.-

ELECTRIC PROGRAM CLOCK.

(Apglicafion filed Due. 15, 1899.)

(In Ilpdpl.)

2 Sheets-Shea 2.

IW///////////////Z'-' UNITED STATES PATENT OFFICE.

HARRY F. JORDAN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO ALBERT L.BENTLEY, OF SAME PLACE.

ELECTRIC PROGRAM-CLOCK.

SPECIFICATION forming part of Letters Patent No. 659.479, dated October9, 1900.

Application filed December 15. 1899. :erial No. 740,436. (No model.)

To ail whom it may concern:

Be it known that I, HARRY F. JORDAN, a citizen of the United States ofAmerica, and a resident of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in ElectricProgram-Clocks, of which the following is a specification.

The main objects of my invention are, first, to provide an electricprogram-clock of simple construction in which the alarm-plugs may 1 beset for day and ni ht and provided with suitable mechanism to preventany night alarm from ringing when the corresponding hour of the day isreached, or vice versa; second, to provide improved switch mechanismwhereby the different plug-retaining circles will be alternatelyinsulated from the alarm mechanism for the purpose hereinbeforementioned; third, to provide an improved circuit-closing arm adapted forcontact with plugs seated in circles of different radii, and, fourth, toipr'ovide an improved form of plug-retaining sockets. I accomplish theseobjects by the mechanism shown in the accompanying drawings, in whichFigure 1 is a front elevation of a progran'lclock constructed accordingto my invention and having part of the casing and circuitclosing armbroken away to reveal parts within. Fig. 2 is a vertical section of sameon the line 2 2 of Fig. 1. Fig. 3 isa rear elevation of the switch. Fig.4 is the same view of the gear-wheel and switching-disk with the partsshown at the front of Fig. 3 removed. Fig. 5 is a top plan of the partsshown in Fig. 3. Fig. 6 is a section on the line 6 6 of Fig. 4. Fig. 7is a perspective view of the contact end of the circuit-closing arm.Fig. 8 is a rear view of part of the front wall and showing the interiorstructure of the different sockets.

The casing 1 has therein a clock-movement 3 and a battery 4 andsupport-s an electric hell 5. The front wall 7 of the casing is providedwith an outer circle or ring 3 and an inner circle or ring 9. Eachcircle consists of a series of sockets 10,connected by wires 11. Theouter circle 8 has its wire 11 connected to the wire 12, which passes tothe switch. The inner circle 9 is likewise connected to the wire 13,passing to the switch. The wire 14 connects the switch with the battery.The wire 15 connects the battery with the bell, and the wire 16 connectsthe hell with the clock mechanism and through same with thecircuit-closing arm 17. The circuit-closing arm is supported on thearbor 18 of the hourhand. The gear-wheel 19, which is rigid on saidarbor 18, is driven by the pinion 20 of the clock-movement. Said pinionalso drives the gear-wheel 21 of the switch. The gearwheel 21 isprovided with double the number of teeth that are carried by thegear-wheel ls. Thus at each complete'revolution of the hourhand 22 thegear-wheel 21 will make half of a revolution. The gear-wheel 21 isprovided with a disk 23, of insulating material, said material beingfastened to said gearwheel by the screws 24, which do not extendentirely through said insulating material. A metallic band 25, ofsemicircular form, is let into said insulating material, flush with itsface on one side of said disk. A similar semicircular band 26, ofsmaller radius, is let into the face of said disk on the opposite half.Said disks are connected to the insulating material by pegs 27, which donot extend through to the wall 21. The plate 28 has thereon theinsulating-blocks 29 and 30. The block 29 supports the wire 14, whichconnects with a spring contact-point 31, which is connected to the block29 by the screw 32. The block 30 has the spring contact-points 33 and 34connected thereto by the screws 35 and 36, respectively. The wire 12connects with the contact-point 33 and the wire 13 connects with thecontact-point 34.

The disk 23 and wheel 21 are journaled in the plate 28 by the shaft 37.The contact end of the circuit-closing arm, as shown in Fig. 7, has apart 38, bent inwardly, so as to pass free from any contactplugs 39 thatmay be seated in the inner retaining ring or circle 9. The arms 39 and40 are pivoted at 41 and 42, respectively, to the member 43 of saidcircuit-closing arm. The spring 44 holds the members 39 and 40 normallyin the position shown, with their inner ends abutting the stop 45 onsaid member 43. Either or both arms 39 and 40 may thus have their freeends moved upwardly from the position shown in Fig. 7 against the actionof the spring 44-. Thus when either of said arms comes in contact with aplug in one of the circles S or 9 said arm will remain in contact withsaid plug until the circuit-closing arm has been carried far enough bythe clock-movement to permit said arm 39 or 4:0 to pass the plug andassume its normal position.

The sockets 10 each consist of the metallic eyelet, having its rimslitted to form the projecting cars 46. The wire 11 is given a singleturn around each eyelet and proceeds thence to the next. The main partof the flange of the eyelet is bent over in the usual way, while thecars 46 project inward slightly and are designed to insure contactbetween the eyelet and the plug that may be inserted therein.

Each plug 39' is provided with a memorandum-tablet 47.

48 represents the ordinary clock-dial. A second dial 49 is preferablyprovided between the circles S and 9. The outer circle 8 will preferablybe used for all day calls, being those between six oclock a. m. and siXoclock p. m. The inner circle will in such case be used for the nightcalls.

The operation of my device is as follows: The operator will set hisplugs in the eyelet at the proper time when a (all is desired, asdenoted by the dial, setting same either in the day or night circle, asmay be desired. During the day-time the contact-point 33 will be on themetallic band 25. When the circuit-closing arm now comes in contact witha plug in the outer circle, an electric circuit will be formed throughthe circle 8, the wire 12, the band 25, contact-point 31, wire 14,battery 4, wire 15, bell 5, wire 16, clock-movement, and circuit-closingarm 17. Thus the alarm will be sounded as long as the member 40 of thecircuit-closing arm remains in contact with one of the plugs 39. Duringthe day-time the contact-point 34 will be on the part 50 of the disk 23,and will thus be insulated fron the contact-point 31. Thus if there areany plugs in the inner circle 9 while same will come in contact with thearm 39 of the circuit-closing arm such contact will not establish acomplete electrical circuit, since said circuit will be broken at theswitch between the contact-points 34 and 31. WVhen the hour-hand hasmade a complete revolutionsay to six oclock in the evening-then thecontact-point 34 will have contact with the metallic band 26 of theswitch and will remain in contact with same during an entire revolutionof the hour-hand. During this time, it will be seen, the circuit withthe inner circle 9 will be complete through the contact-point 345, band26, contact-point 31 whenever the circuit-closing arm comes in contactwith a plug in said inner circle. During this time also thecontact-point 33 will rest upon the insulating material 23 and will thusprevent any circuit being formed through the plugs in the outer circle.

It will be understood that either circle 8 or 9 may be used for day ornight, as may be desired, depending upon the position to which the wheel21 and disk 23 are adjusted when same are connected with the clockmechanism.

It is plain that many'details of my device may be altered in numerousways without departing from the spirit of my invention. I therefore donot confine myself to such details except. as hereinafter limited in theclaims.

lVhat I claim as my invention, and desire to secure by Letters Patent,is

1. In an electric program-clock, the circuit closing arm having a bend38, and the oppositely-extending arms 39 and 40 pivoted outward of saidbend, and secured by means holding same in their normal positions,substantially as described.

2. In an electric program-clock, the combination of a casing; aclock-n1ovement; an electric alarm; a pair of concentric plug-retainingcircles on the casing; a circuit-closing arm carried by theclock-movement; the plugs for establishing an electric connectionbetween said circles and arm; and an electric switch operated by theclock-movement, for establishing an electric connection first betweenone of said circles and said alarm and then between the other of saidcircles and said alarm, substantially as described.

3. In an electric program-clock, the circuitclosing arm having a bend orrecess as at 38, and a pair of oppositely-extending springarms securedto said circuit-closing arm outward of said bend or recess, one of sameextending partly across said recess, substantially as described.

Signed by me at Chicago, Illinois, this 13th day of December, 1899.

HARRY F. JORDAN.

Witnesses:

WM. R. RUMMLER, A. L. BENTLEY.

